Adcor Defense 5.56 x 45mm Semi-Auto B.E.A.R. Brown Enhanced Automatic Rifle combines design innovation and precision manufacturing built upon the tried and true M4/M16 rifle platform. The Adcor Defense B.E.A.R. springs from the M4-M16 rifle platform but offers a completely new twist. Available in many configurations, it offers the operator many significant improvements:
A Revolutionary Gas Piston System (Patent # 065111.00128)
Free-floating barrel and increased accuracy: A gas-driven piston incorporated into the upper half of the forward rail system never touches the barrel. No carrier tilt: The operating rod is connected to the bolt carrier by hex head bolts reinforced with industrial grade Loctite 262 high strength threadlocker. They are then drilled and pinned to prevent loosening under adverse conditions. The operating rod then rides through a machined boss in the receiver rail system interface keeping the bolt carrier in a linear plane as it operates.
No fouling of chamber and action: Hot gases and carbon particulates are prevented from entering the receiver. Because heat reaching the upper receiver is diminished, lubricant lasts longer and maintenance is simplified.
Easily detached lower rail system: No special tools needed for quick cleaning and easy maintenance.
Wear on critical parts is minimized: The operator can easily adjust the piston's cyclical rate for a controlled rate of fire.
No need for piston rings: Extremely close machine tolerances of the piston eliminate the need.
Exclusive Port Dust Wiper with Cover
Prevents entry of dust, sand or debris: The spring-loaded dust shield mounted on the bolt carrier allows the bolt carrier's return to ready position; the port dust wiper moves into the ejection port opening flush with the inside geometry of the upper receiver.
Withstands temperature extremes because of the highly durable, self-lubricating polymer shield.
Ambidextrous Forward Placed Charging Handle: Simplicity is Beautiful.
Simple design allows the operator to keep his or her strong hand on the firearm and use the other hand to clear the rifle.
Ambidextrous handle detaches easily without special tools and returns to locked position once used. It folds forward, recessed, and easily swings back out in a single motion.
Non-reciprocating handle only engages when the operator charges or clears.
Rail System ( 7075-T6 )
Innovative, key locked, highly rigid rail system mounts seamlessly to the upper receiver: Design ensures proper alignment of the rail with a redesigned boss, spline and groove system.
Upper and lower rail guards separate with the push of a button: No special tools necessary.
Fully compatible with optical, image intensification or thermal sights; laser targeting systems; bipods; tactical lights and Multiple Integrated Laser Engagement System (MILES).
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